Home / 15,409.30-23,165.51-12,161.54

Finding the Fourth Proportional to 15,409.30, 23,165.51 and 12,161.54

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Solution

The fourth proportional to 15,409.30, 23,165.51 and 12,161.54 is: 18,283.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,409.30 : 23,165.51 = 12,161.54 : x
  2. Step 2: Convert to fraction form
    15,409.30/23,165.51 = 12,161.54/x
  3. Step 3: Cross multiply
    15,409.30x = 23,165.51 × 12,161.54
  4. Step 4: Simplify right side
    15,409.30x = 281,728,276.49
  5. Step 5: Solve for x
    x = 281,728,276.49/15,409.30
  6. Step 6: Final answer
    x = 18,283.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.